JPH0741657Y2 - Handle attachment / detachment device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a vehicle for traveling by steering wheels such as a forklift truck, which can easily switch between automatic operation and manual operation. The handle attachment / detachment device is particularly suitable for use in an automated guided vehicle.

(Prior Art) Conventionally, a vehicle of this type generally has a steering wheel that determines a traveling direction, and an actuator is provided in a vehicle that performs automatic driving (such as an automated guided vehicle).

By the way, even a vehicle that is automatically driven may be used for adjustment or temporary use, and thus "ability to be manually driven" is indispensable.

And as a method of making these both compatible, the actuator is operated by a separate manual switch.

There is a case where an automatic operation is performed with the steering wheel always attached, and it is currently used depending on the circumstances.

(Problems to be solved by the invention) However, the above method (a) can be promptly dealt with because the steering wheel is always attached.

(B) On the other hand, it has the advantage that it can be operated with the same feeling as a general manned vehicle, but since the handle portion is also turned by the actuator, the moment of inertia becomes large, which adversely affects the control system and invites an increase in the actuator capacity. There was a problem that the power source (battery) was lost.

This invention makes it a subject to solve the said trouble.

(Means and Actions for Solving the Problem) The present invention has been made in view of the above points, and a drive groove is provided in a shaft connected to a steering system, and an upper end of a case that rotatably holds the shaft. The handle shaft is formed by providing a connecting portion in which a passage side groove and a stop side groove are formed, and locking the gap between the lower end of the connecting portion of the case and the upper end of the shaft with the drive groove of the shaft provided at the tip of the handle shaft. By inserting it into the case and connecting the steering wheel to the steering system to perform manual movement, the handle shaft projects from the top surface of the case to separate the steering wheel from the steering system for unmanned operation, and to disconnect from the steering system. This is done reliably and the operator can easily distinguish between manual operation and automatic operation.

(Example) Next, the Example of this invention is described based on drawing.

In FIGS. 1A and 1B, 1 is a handle, 1a is a shaft end of the handle 1, and a pin 2 is provided at the shaft end 1a.
Is provided.

Reference numeral 3 denotes a shaft connected to the steering system, which has a drive groove 4 and is supported by a bearing 5 so as to be rotatable in the case 5.

A connecting portion having cross-shaped grooves 7 and 8 is formed at an upper end portion of a case 6 that rotatably holds the shaft 3.

7 is a through groove so that the pin 2 can pass through,
The groove 8 is a blind groove so that the pin 2 stops on the way. (See FIGS. 1 (a) and 1 (b)) The stop side groove 8 is a state where the pin 2 is inserted to the stop point 8a of the groove 8 as shown in FIG. 2 (a) during automatic operation. Has a sufficient depth to hold
Therefore, there is no risk that the steering wheel 1 will come off and be lost, and in this case, the steering wheel 1 and the steering system can be reliably separated from each other, and automatic driving can be performed.

On the other hand, during automatic operation, as shown in FIG. 1 (a), the pin 2 passes through the groove 7 on the passing side and enters the drive groove 4 of the shaft 3, is connected to the steering wheel 1 and the steering system, and is operated by the steering wheel 1. Is possible.

In this case, the rotation direction of the shaft 3 (direction of the drive groove 4)
Is not usually determined, so that the direction is not always the same as the side groove 7 of the case 6.

Therefore, the gap δ between the case 6 and the shaft 3 is made larger than the diameter of the pin 2.

Since the shaft 1a of the handle 1 is fitted into the case 6 as described above during the manual operation of FIG. 1 (a), the length of the shaft 1a protruding from the upper end of the case 6 is small as shown by H. In the automatic operation of FIG. 2 (a), the shaft 1a protrudes more than the upper end of the case 6 as shown by K, that is, H <K. By looking, the operator can very easily distinguish between manual operation and automatic operation.

(Effect of the Invention) This invention has been described in detail above, and the pin provided at the end of the handle shaft is locked in the stop side groove of the case, or passes through the case side groove to drive the shaft. It is easy to switch between automatic operation and manual operation by locking the steering wheel to the steering wheel, and the steering wheel and steering system can be reliably separated. Therefore, the steering wheel can be attached to and detached from the steering system at low cost. It is possible.

Note that the rotation direction of the shaft during manual operation is not always fixed, and the direction of the drive groove does not necessarily match the direction of the side groove of the case.Therefore, make the gap between the case and shaft larger than the pin diameter. By doing so, it is possible to adapt appropriately and smoothly operate the handle.

Furthermore, according to this invention, it is extremely easy for the operator to distinguish between manual operation and automatic operation, and there is no risk of losing the steering wheel.

[Brief description of drawings]

FIG. 1 (a) is a front view of the present invention, FIG. 1 (b) is an exploded perspective view thereof, FIG. 2 (a) is the same state during automatic operation, and FIG. 2 (b) is the same. An exploded perspective view is shown. 1 …… Handle 1a …… Handle Shaft 2 …… Pin 3 …… Shaft 4 …… Drive groove 5 …… Bearing 6 …… Case 7 …… Side side groove 7 …… Stop side groove 8 …… Gap δ …… Connecting member 9 ...... Connecting members

Claims (1)

[Scope of utility model registration request] 1. A drive groove 4 is provided on a shaft 3 connected to a steering system, and a connecting portion 9 is formed on a top end portion of a case 6 for holding the shaft 3 in a freely rotatable manner. Provided, the lower end of the connecting portion 9 of the case 6 and the shaft 13
The gap δ from the upper end of the shaft 1 is made larger than the diameter of the pin 2 provided at the tip of the shaft 1a of the handle 1, and the pin 2 passes through the side groove 7 of the case 6 and engages with the drive groove 4 of the shaft 3. When the handle shaft 1a is fitted into the case 6 by stopping, the handle 1 is connected to the steering system for manual movement, and the pin 2 is engaged with the stop side groove 8 so that the handle shaft 1a is attached to the upper surface of the case 6. A handle attaching / detaching device, which is further protruded and separated from the steering system of the handle 1 so that unmanned operation can be performed.